
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
}

/* 整体布局 */
.container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    gap: 20px;
    padding: 20px;
}

.profile-headers{
    margin: auto;
    max-width: 2000px;
}

/* 背景图与头像 */
.profile-header {
    position: relative;
    height: 240px;
    background: linear-gradient(180deg, #00A1D6 0%, #F4F5F6 100%);
    margin-bottom: 80px;
}
.avatar-wrapper {
    position: absolute;
    left: 50%;
    bottom: -60px;
    transform: translateX(-50%);
    text-align: center;
}
.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid white;
    margin-bottom: 10px;
}

/* 左侧主内容 */
.main-content {
    flex: 3;
}
/* 导航栏 */
.nav-tabs {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid #E3E5E7;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #61666D;
    cursor: pointer;
    padding: 8px 0;
}
.nav-item.active {
    color: #00A1D6;
    border-bottom: 3px solid #00A1D6;
}
.search-box {
    margin-left: auto;
    padding: 8px 15px;
    border: 1px solid #E3E5E7;
    border-radius: 20px;
    width: 200px;
}

/* 视频列表 */
.video-section {
    margin-bottom: 30px;
}
.section-title {
    font-size: 18px;
    margin-bottom: 15px;
}
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.video-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.video-thumb {
    width: 100%;
    height: 180px;
    background: #eee;
}
.video-info {
    padding: 12px;
}
.video-title {
    font-size: 14px;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.video-meta {
    color: #9499A0;
    font-size: 12px;
}

/* 右侧边栏 */
.sidebar {
    flex: 1;
    position: relative;
    top: 50px;
    border-left: solid gray 1px;
}
.stats-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}
.stat-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 8px 0;
    border-bottom: 1px solid #F0F0F0;
}
.notice-board {
    background: white;
    padding: 20px;
    border-radius: 8px;
}
.notice-item {
    padding: 10px 0;
    border-bottom: 1px solid #F0F0F0;
}
.button-box{

    display: flex;
    justify-content: end;
    gap: 50px;
    margin-right: 30px;
}
.button-box-button{
    border-radius: 5%;
    cursor: pointer;
    width: 100px;
    height: 30px;
    border: 0px;
    background-color: skyblue;
}